Renewable-seat valve.



Patented July It], I900.

E; H. LUNKEN.

RENEWABLE SEAT VALVE.

(Application filed Mar. 3, 1900.)-

(No Model.)

I 71 vmtm 101 271 eases.

NiTrE STATES PAT NT OFFICE.

EDMUND H. LUNKEN, OF DENVER, COLORADO, ASSIGNOR TO THE LUNKEN- HEIMER COMPANY, OF CINCINNATI, OHIO.

R-EN EWAB LE-sEAT VALVE.

SPECIFICATION forming part of Letters Patent No. 653,301, dated July 10, 1900.

Application filed March 3, 1900. Serial No. 7,172. (No model.)

To all whom it may concern.-

Be it known that I, EDMUND H. LUNKEN, a citizen of the United States, residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Renewable-Seat Valves, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, forming part of this specification.

My invention relates to that class of valves among which may be enumerated globevalves, check-valves in the form of globevalves, angle-valves, and, in short, all that class of valves havingan inlet-opening, a'pipeopening, and an interposed valve-seat opening, with a valve-seat covered by a valve that moves to and from its seat always in planes parallel with the plane of the seat;

and it has for its object the provision of a removable and renewable seat and holder therefor for this class of valves, both of which can be readily applied and removed without trouble or loss of time and without disconnecting the valve from its pipe-fittings,thereby greatly increasing the efficiency of the valve and prolonging its life.

The novelty of my invention will be hereinafter more fully set forth, and specifically 3o pointed out in the claim.

In the accompanying drawings, Figure l is an axial side elevation of so much of a globe valve as is necessary to illustrate my invention. Fig. 2 is a corresponding detail view of the neck of an iron-bod y valve, showing the application of my invention. Fig. 3 is a perspective view of the seat-holder. Fig. 4. is a sectional side elevation of the same on the dotted line m 00 of Fig. 8.

The same letters of reference are used to indicate identical parts in all the figures.

In Fig. 1, which represents an ordinary globe-valve or so much thereof as is necessary to illustrate my invention, A represents the body, with opposite pipe-openings a b to form inlet and outlet openings for the valve. Within the body, between these openings or b, is the usual diaphragm 0, having through it an opening at, containing the valve-seat D, with which the valve 6, represented by dotted lines, engages, and is moved to and from the valve-seat to close and open the valve by the usual or any suitable stem f, passing through and engaging with a cap or bonnet B, screwed down to the neck 0 of the valve.

So far the construction described is that of any ordinary globe-valve, and I will now pros ceed to describe the application of my invention thereto.

Loosely fitted within the valve-opening in the diaphragm c is a removable ring-seat D, with an exterior rabbet or cut-out portion on its under side to fit the opening in the diaphragm and with an upper beveled portion 9 to form the valve-seat, with which the correspondingly-beveled lower portion of the valve 6 engages. The upper exterior portion of the ring-seat is rabbetedwith a beveled lower side of the rabbet inclined inward, as seen at h, Fig. 1. The neck portion of the body of Fig. 1 at E is exteriorly threaded with a flattened top, and upon this top rests a gasket ring or washer 2, having a downward flange j and carrying on opposite sides arms 70, whose lower edges are beveled, as seen at Z, Fig. 4, and which beveled edges fit into the upper rabbet h of the ring-seat and by the downward pressure of the parts, as hereinafter. enumerated, are forced inward to hold thering-seat D securely to its place. The arms 7c are on'the sides of the neck of the valve at right angles to the passage-way through the valve, so that they do not in any wayobstruct said passage-way. After the ring-seat holder is thus applied, with the gasket 2' resting on the threaded neck E, the bonnet B, with an interior portion Z fitting within the pendent flange j and an exterior flanged. portion or resting upon the gasket 7:, is next applied, and then the ordinary exterior union c F is slipped over the bonnet and screwed down tight upon the flange m thereof, so as to hold the bonnet in place and clamp and press down the gasket 2' in such manner that the arms 76 will securely engage the ring-seat 5 D and both will be held from turning.

In Fig. 2 I have shown the same construction of holder for the removable valve-seat, with its arms 70 and with its gasket 71 clamped between the neck ofthe body A of an iron mo valve and its bonnet B, which is secured thereto by bolts or screws 02., passed through flanges in the bonnet and body-neck, as will be readily understood. By this simple construction I am enabled to provide a renewable seat for a valve with a holder that will retain it in place in the most simple and efficacious manner, and by the manner of clamping the holder between the bonnet and neck of the valve the parts are securely held from turning when the valve is raised from or lowered to its seat, while at the same time the gasket will act as a secure packing between the bonnet and body of the valve to prevent leakage.

Where the gasket is omitted anda suitable non-turning device employed, or even where the gasket is used, it is evident that the arm is may be made fast to or integral with the ring-seat D, so that in applying or removing the ring-seat the arms hand the ring which unites them at the top will be applied or re moved also. I have indicated this construction in Fig. 3, where the ring-seat D is shown 'in dotted lines at the bottom of the arms 70 as being united to said arms.

Having thus fully described my invention, I claim In valve construction in which the valve moves to and from its seat in constantly-parallel planes, the combination of the body having inlet and outlet openings and an interposed seat-opening, a ring-seat'fitted to said last-named opening and having a rabbet on its upper exterior edge, an arm on each side of the valve-passage bearing upon said rabbet of the ring-seat, a ring connecting the upper ends of said arms and provided with a flange or gasket adapted to be clamped between the bonnet and neck of the valve to hold the ringseat arms from turning, and the valve which engages with the ring-seat, substantially as described.

EDMUND H. LUNKEN.

Witnesses:

EDWARD PECK, JOSIAH I-IoLBRooK. 

